• Replaceable metrological unit (according to european MID)
  • Long-term flood-proof (IP68) hermetically sealed glass/copper register, third-party IP68 tested
  • Low starting flow, high overload security
  • Wide measuring range, small pressure loss
  • Hydraulic bearing relieve
  • Long-term measuring stability


The ZENNER Bulk water meter WPD / WPHD is specially constructed for the measuring of high flow rates with a mainly constant flow rate profile. Due to the  robust design, WPD / WPHD can cover a wide measuring range and provide accurate measuring results over a long period. So it covers almost all measuring tasks in the drinking water supply and distribution.

The housing of the WPD / WPHD was flow-optimized. The mesuring insert was newly constructed as a replacable metrological unit according to european MID. In combination with an up-to-date bearing of the impeller a good linearity and long-term stability of the error curve can be achieved. The robust copper-glass-register is non-diffusive and protected against condensation. It also works reliably under the hardest conditions (e.g. in flooded pits or shafts).

The  WPD / WPHD is optimally prepared for remote reading. Retrofitting of electronic communication modules (EDC radio, EDC M-Bus, EDC pulse) and conventional Reed sensor is possible at any time and without  violating the calibration seal.

Application area

  • For the measuring of high flow rates
  • For horizontal or vertical installation
  • For cold water up to 50° C

AMR options

  • Retrofittable with reed-sensor
  • Stationary GSM system

Serially equipped with communication interface for:

  • Electronic pulser
  • Wired M-bus
  • Radio via wireless M-bus according to OMS (Open Metering System)
  • Radio via LPWAN (LoRaWAN™, SIGFOX)